Home / 3,455.32-5,179.08-3,178.48

Finding the Fourth Proportional to 3,455.32, 5,179.08 and 3,178.48

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Solution

The fourth proportional to 3,455.32, 5,179.08 and 3,178.48 is: 4,764.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,455.32 : 5,179.08 = 3,178.48 : x
  2. Step 2: Convert to fraction form
    3,455.32/5,179.08 = 3,178.48/x
  3. Step 3: Cross multiply
    3,455.32x = 5,179.08 × 3,178.48
  4. Step 4: Simplify right side
    3,455.32x = 16,461,602.20
  5. Step 5: Solve for x
    x = 16,461,602.20/3,455.32
  6. Step 6: Final answer
    x = 4,764.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.